(jacob and jacob was discussing) the rgument during the debate.

is the underlined corrected as jacob and jacob discussed

No, it's not right. What should the verb be?

i think i put it out wrong

(jacob and jacob was discussing) the argument presented during the debate.

the part in the parenthesis is written as jacob and jacob discussed

Yes, it could be written that way >> Jacob and Jacob discussed

No, the underlined phrase is not correct. It should be "Jacob and Jacob were discussing" instead of "Jacob and Jacob was discussing." The verb "were" is used when the subject is plural, which is the case here with two instances of the name "Jacob."